/*
 * Copyright (c) 2004, Bull S.A..  All rights reserved.
 * Created by: Sebastien Decugis

 * This program is free software; you can redistribute it and/or modify it
 * under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it would be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

 * This sample test aims to check the following assertion:
 *
 * No atexit() registered routine shall be called because of pthread_exit().

 * The steps are:
 *
 *  -> Create threads with different attributes (but all must be joinable)
 *  -> inside the thread,
 *     -> register a function with atexit()
 *     -> call pthread_exit.
 *  -> In the main thread, we join the thread and check the function did not execute.

  */

/********************************************************************************************/
/****************************** standard includes *****************************************/
/********************************************************************************************/
#include <pthread.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#include <sched.h>
#include <semaphore.h>
#include <errno.h>
#include <assert.h>
/********************************************************************************************/
/******************************   Test framework   *****************************************/
/********************************************************************************************/
#include "../testfrmw/testfrmw.h"
#include "../testfrmw/testfrmw.c"
 /* This header is responsible for defining the following macros:
  * UNRESOLVED(ret, descr);
  *    where descr is a description of the error and ret is an int (error code for example)
  * FAILED(descr);
  *    where descr is a short text saying why the test has failed.
  * PASSED();
  *    No parameter.
  *
  * Both three macros shall terminate the calling process.
  * The testcase shall not terminate in any other maneer.
  *
  * The other file defines the functions
  * void output_init()
  * void output(char * string, ...)
  *
  * Those may be used to output information.
  */

/********************************************************************************************/
/********************************** Configuration ******************************************/
/********************************************************************************************/
#ifndef VERBOSE
#define VERBOSE 1
#endif

/********************************************************************************************/
/***********************************    Test cases  *****************************************/
/********************************************************************************************/

#include "../testfrmw/threads_scenarii.c"

/* This file will define the following objects:
 * scenarii: array of struct __scenario type.
 * NSCENAR : macro giving the total # of scenarii
 * scenar_init(): function to call before use the scenarii array.
 * scenar_fini(): function to call after end of use of the scenarii array.
 */

/********************************************************************************************/
/***********************************    Real Test   *****************************************/
/********************************************************************************************/

int global = 0;

/* atexit() routines */
void at1(void)
{
	global +=1;
}

void at2(void)
{
	global +=2;
}

/* Thread routine */
void *threaded(void *arg LTP_ATTRIBUTE_UNUSED)
{
	int ret = 0;

	/* Note that this funtion will be registered once again for each scenario.
	   POSIX requires the ability to register at least 32 functions so it should
	   not be an issue in our case, as long as we don't get more than 32 scenarii
	   (with joinable threads) */
	ret = atexit(at2);
	if (ret != 0) {
		UNRESOLVED(ret, "Failed to register an atexit() routine");
	}

	pthread_exit(NULL + 1);

	FAILED("pthread_exit() did not terminate the thread");
	return NULL;
}

int main(void)
{
	int ret = 0;
	void *rval;
	pthread_t child;
	int i;

	output_init();

	scenar_init();

	for (i = 0; i < NSCENAR; i++) {
		if (scenarii[i].detached == 0) {
#if VERBOSE > 0
			output("-----\n");
			output("Starting test with scenario (%i): %s\n", i,
			       scenarii[i].descr);
#endif

			ret =
			    pthread_create(&child, &scenarii[i].ta, threaded,
					   NULL);
			switch (scenarii[i].result) {
			case 0:	/* Operation was expected to succeed */
				if (ret != 0) {
					UNRESOLVED(ret,
						   "Failed to create this thread");
				}
				break;

			case 1:	/* Operation was expected to fail */
				if (ret == 0) {
					UNRESOLVED(-1,
						   "An error was expected but the thread creation succeeded");
				}
				break;

			case 2:	/* We did not know the expected result */
			default:
#if VERBOSE > 0
				if (ret == 0) {
					output
					    ("Thread has been created successfully for this scenario\n");
				} else {
					output
					    ("Thread creation failed with the error: %s\n",
					     strerror(ret));
				}
#endif
			}
			if (ret == 0) {	/* The new thread is running */
				ret = pthread_join(child, &rval);
				if (ret != 0) {
					UNRESOLVED(ret,
						   "Unable to join a thread");
				}

				if (rval != (NULL + 1)) {
					FAILED
					    ("pthread_join() did not retrieve the pthread_exit() param");
				}

				if (global !=0) {
					FAILED
					    ("The function registered with atexit() executed");
				}

			}
		}
	}

	scenar_fini();
#if VERBOSE > 0
	output("-----\n");
	output("All test data destroyed\n");
	output("Test PASSED\n");
#endif

	PASSED;
}
